Read workflow_search input as a boolean (#273)

In commit f6b0bac we added
a check for !workflow_search before using the current workflow,
but with a string this always evaluates to true.

This results in always searching workflows, and if enough
inputs are unspecified it can find the wrong run id.

Signed-off-by: Kyle Harding <kyle@balena.io>

.github/workflows/download.yml

@@ -37,6 +37,7 @@ jobs:
         with:
           name: artifact
           path: artifact
+          workflow_search: true
       - name: Test
         run: cat artifact/sha | grep $GITHUB_SHA
   download-branch:

main.js

@@ -38,7 +38,7 @@ async function main() {
         const skipUnpack = core.getBooleanInput("skip_unpack")
         const ifNoArtifactFound = core.getInput("if_no_artifact_found")
         let workflow = core.getInput("workflow")
-        let workflowSearch = core.getInput("workflow_search")
+        let workflowSearch = core.getBooleanInput("workflow_search")
         let workflowConclusion = core.getInput("workflow_conclusion")
         let pr = core.getInput("pr")
         let commit = core.getInput("commit")